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Abstract
Carbon doped Al 2O 3 (corundum) exhibits very broad radioluminescence (RL) as a result of ionising radiation irradiation. The stability of the trapped electrons and the linearity of the luminescence signal versus electron energy qualifies this dosimeter material for use in source calibration using radioluminescence. For precise calibration of small beta and electron sources applied to radioluminescence dating a new method is suggested. This method is based on radioluminescence dosimetry using the TL and OSL dosimeter Al 2O 3 : C. In contrast to conventional calibration methods, the suggested approach uses the dose dependent RL signal of Al 2O 3 : C at 3.00 eV, including when this material is used as a probe within other materials for which the dose rate of the source has to be calibrated. This paper describes the RL characteristics of Al 2O 3 : C by means of a highly precise calibration protocol.
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